The first way that many people get to play these games online and then get paid for doing so is by being a video game tester. Oh, come off it. You know you have always wanted to do this. You know you want to get paid for doing what you love.
This takes time as they want you to reach all the levels and there are so many different things you are grading these games on, but we know that there are some pretty hard gamers out there who would be perfect at this sort of job. It does take some skill believe it or not, but come off it, you are getting paid to play! Ther are also various online platforms that offer free psn codes for playing games.
Another way that people are making money to play games is by joining a role playing game. These are otherwise known as RPG's. Some people who play this avidly are paid to create the characters for others who might not really know how to do so. The same goes for the clothes and weapons and everything else that your character might need when doing a role playing game.
They put their stuff that they have created on the market and get paid for doing so. You have the talent, and then you should go for it after all. If you think that these things go for your every day price, then you might be shocked when you see the price tags on some of them. But, if you got what it takes and people like what they see they will pay for it and many gamers have found this to be true.